Short for 'customer'- drug dealer slang used to denote either a customer in general or a customet who would pay higher then average prices for the drugs. Can also be used a s a verb 'to custie someone'.

A poser. Someone who goes to a "jamband" show yet doesn't know anything about the band, goes to the show because its deemed cool, has subwoofers that play 50 Cent all day in their SUV, wears the stereotypical hippy clothing, and makes fun of people who talk about 'positive vibes' and 'positive energy.' This describes, in essence, 95% of all Widespread Panic fans and also would be appropriate terminology for 80% of the crowds at Phish shows from 1999 and on.

"Dude, what is Todd doing at this Phish show? That jackass wears polo shirts with flipped up collars and yet today he has flip flops on with patchwork pants and a retro Dead shirt on from 77! Todd wouldn't know good music if it bit him on the ass. What a custie!"

N. Noun derived from the word customer, referring to those who are attempting to purchase drugs. A custie is not a good thing to be. A primary goal of the dealer is to rip off custies. It is, however, their own damn fault for being so stupid.

Custies are often those who use drugs occasionally at most and are not aware of the street value of a said drug, nor of what denotes quality. As such, they are easy targets.

Example one: Hey brah, I just sold some bunk doses to some custie chick.

Example two:

Person one - They won't buy acid for $15 a hit, man. You got that shit for $6 a hit.

orginally referring only to customers of a drug dealer be it all the time or just on lot but now has taken the form of an insult to refer to all sorts of dumbasses be it just a customer whom you tax too the point they are moronic for paying, a customer whom you continually short, or even a person who gets the wings they did not earn ripped off